NO20002807L - Energy efficient system and method for reducing water friction on the hull of a sea vessel - Google Patents

Energy efficient system and method for reducing water friction on the hull of a sea vessel

Info

Publication number
NO20002807L
NO20002807L NO20002807A NO20002807A NO20002807L NO 20002807 L NO20002807 L NO 20002807L NO 20002807 A NO20002807 A NO 20002807A NO 20002807 A NO20002807 A NO 20002807A NO 20002807 L NO20002807 L NO 20002807L
Authority
NO
Norway
Prior art keywords
compressed air
hull
gas
energy efficient
water
Prior art date
Application number
NO20002807A
Other languages
Norwegian (no)
Other versions
NO20002807D0 (en
Inventor
Daniel J Wipper
Original Assignee
Daniel J Wipper
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daniel J Wipper filed Critical Daniel J Wipper
Publication of NO20002807D0 publication Critical patent/NO20002807D0/en
Publication of NO20002807L publication Critical patent/NO20002807L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • B63B1/34—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction
    • B63B1/38—Other means for varying the inherent hydrodynamic characteristics of hulls by reducing surface friction using air bubbles or air layers gas filled volumes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Cleaning Or Clearing Of The Surface Of Open Water (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Et energieffektivt system for å redusere vannfriksjo- nen mot skroget av et sjøgående fartøy (10). Kontak- ten av vannet med den del av den ytre overflate av skroget på et sjøgående fartøy (10) som normalt er i kontakt med vannet, blir redusert ved den strategiske induksjon av trykkluft eller komprimert luft eller gass for å dekke denne ytre overflate. Den komprimerte luft blir holdt på plass på den ytre overflate ved hjelp av forskjellige spor (30), kanaler (66) eller halvflate over- flater (124) som løper langs lengden av fartøyets bunn, og ved visse anvendelser vertikale sider, hvilket hind- rer at den komprimerte gass strømmer til overflaten av vannet. Trykkluften eller gassen blir innfanget på nytt før den kommer ut av akterenden eller sidene, og blir resirkulert til baugen ved anordning av et energieffek- tivt sirkulasjonssystem (34, 36, 37, 38), slik at energien i den komprimerte luft eller gass som har strømmet fra baugen til akterenden, gjenvinnes. Jo større og dypere skrogets deplasementer, jo større er den effektivitet som realiseres ved resirkulering av den komprimerte luft eller annen gass.An energy efficient system for reducing the water friction against the hull of a seagoing vessel (10). The contact of the water with that part of the outer surface of the hull of a seagoing vessel (10) normally in contact with the water is reduced by the strategic induction of compressed air or compressed air or gas to cover this outer surface. The compressed air is held in place on the outer surface by means of various grooves (30), ducts (66) or semi-surface surfaces (124) running along the length of the vessel's bottom, and in certain applications vertical sides, which prevent means that the compressed gas flows to the surface of the water. The compressed air or gas is re-captured before it exits the stern or sides, and is recirculated to the bow by means of an energy efficient circulation system (34, 36, 37, 38), so that the energy in the compressed air or gas having flowed from the bow to the stern, is recovered. The larger and deeper the hull's displacement elements, the greater the efficiency achieved by recirculating the compressed air or other gas.

NO20002807A 1997-12-02 2000-05-31 Energy efficient system and method for reducing water friction on the hull of a sea vessel NO20002807L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/982,622 US5967071A (en) 1997-12-02 1997-12-02 Energy efficient system and method for reducing water friction on the hull of a marine vessel
PCT/US1998/025503 WO1999028180A1 (en) 1997-12-02 1998-12-02 Energy efficient system and method for reducing water friction on the hull of a marine vessel

Publications (2)

Publication Number Publication Date
NO20002807D0 NO20002807D0 (en) 2000-05-31
NO20002807L true NO20002807L (en) 2000-08-01

Family

ID=25529357

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20002807A NO20002807L (en) 1997-12-02 2000-05-31 Energy efficient system and method for reducing water friction on the hull of a sea vessel

Country Status (10)

Country Link
US (1) US5967071A (en)
EP (1) EP1042161A4 (en)
JP (1) JP2001524421A (en)
KR (1) KR20010032664A (en)
CN (1) CN1280540A (en)
AU (1) AU745813B2 (en)
BR (1) BR9815163A (en)
CA (1) CA2310430A1 (en)
NO (1) NO20002807L (en)
WO (1) WO1999028180A1 (en)

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Also Published As

Publication number Publication date
WO1999028180A1 (en) 1999-06-10
EP1042161A4 (en) 2002-09-18
NO20002807D0 (en) 2000-05-31
EP1042161A1 (en) 2000-10-11
AU745813B2 (en) 2002-04-11
AU1616899A (en) 1999-06-16
CA2310430A1 (en) 1999-06-10
KR20010032664A (en) 2001-04-25
JP2001524421A (en) 2001-12-04
US5967071A (en) 1999-10-19
CN1280540A (en) 2001-01-17
BR9815163A (en) 2000-10-03

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